Paper receptacle



A. J. LACKNER June 28, 1932.

PAPER RECEPTACLE Filed March 22. 1929 Patented June 28, Q 1932 ALnmnnn :r. moxnnn, or rnusnme, nnwfxonx urea nnonrracnn Application filed Batch 22, 1929. Serial No. 849,228.

This invention relates to improvements 1n paper receptacles.

It is a primary object of the nvention to provide a receptacle formed entirely of pa- ,5 per and having a reenforcing flange or bead adjacent the upper edge of the receptacle which will serve to prevent distort1on of the cup in a manner superior tothe reenforcements heretofore known. to More specifically the invention relates to the formation of a substantially square pro-' 1 and illustrating the reenforcing flange on the completed cup.

The present cup is intended to be formed of relatively light, strong paper so that it becomes ofconsiderable importance to 'provide devices for stiflening or reenforcing the cup so that it can be readily held in the hand of the user and so that it will not be liable to become out of shape when permitted to remain with water or other liquid in the same. For many years it has been the practice to form a flat edge as shown in Fig. 2 or to form the edge of the cup into a circular rolled'bead, both of these methods having certain advantages n such as cheapness of construction and a fair degree of rigidity.

In the formation of my improved cup I begin with a single sheet of paper formed as a substantially circular blank from which the completed cup 6 is to be made. This blank is folded and compressed to form the bottom 8 and plaited sides 10 of the cup from the one piece of material. By means of suitable dies the upper edge of the cup is then bent downwardly as at 9 and upwardly as at 11 to form the return bend or flan e 12 illustrated in Fig. 2. Thereafter the ange 12 so formed is compressed inwardly toward or against the body of the cup.

It is found that by an additional step performed upon the flat-edged cup as shown in Fig. 2 the reenforcing quality of the flange is greatly increased. This step comprises folding the two thicknesses. of the flange as so shown in .Fig. 2 to substantially the shape shown in Figs. 3 and 4 in which the reenforcing flange 14 is substantially square and projects outwardly from the cup body. This flange is formed in the completed cup with an outer layer or section16 formed as a continuation of the sides of the cup,-with an outwardly extending portion 16a, a downwardl v extending side edge 16?) and an inwardly extending portion 160, the latter extending to andwinto engagement with the cup body as The inner layer or section 18 of the reenforcing flange follows the general shape of the outer section thereof in a reverse mannor, that is, the inner section lies substantially against the outer section so that when compressed into rectangular form, the inner section follows the configuration of the outer section. The inner section thus has parts 180, 18b and 18a corresponding to thevparts 160, 16?) and 16a of the outer section, the part 18a terminating at a point at or near the body of the cup. I

The overlapping plaits are folded in the g5 flange 1t and due to the fact that the flange so formed extends for a substantial distance lengthwise of the cup and with the verticalportions 161) and 18b spaced from the body of the cup the result is a more rigid body than is found in prior paper receptacles. This rigidity is increased by reason ofthe engagement of the edge 17 of the flange against the body of the cup where it is additionally sup ported. I

The cup disclosed'herein is an improvement in paper receptacles not only in that it has a high degree of rigidity but also in that it may be readily nested in a container and may be dispensed in machines provided for sidesof said receptacle adjacent and encir-' cling said opening.

v 2. A paper receptacle formed from a single sheet of paper having a bottom and plaited sides, the latter terminating in an opening, means for reenforcing said cup, said means comprising a rectangular fold of the overlapping sides of said receptacle adjacent and encircling said opening, said fold including an outer section extended outwardly, downwardly and inwardly to said cup body and forming a direct continuation of said sides and an inner section forming a continuationof said outer section and turned outwardly, upwardly, then inwardly to follow reversely the general configuration of said outer section.

3. A paper receptacle formed from a single sheet of paper having a'bottom and plaited sides, the latter terminating in an opening, means for reenforcing said cup, said means comprising a substantially square fold of the overlapping sides of said receptacle adjacent and encircling said opening, said fold including an outer section forming a direct continuation of said sides and an inner section forming a continuation of said outer section and following said outer section reversely along a plurality of sides of said square fold.

4. A paper receptacle formed from a single sheet ofpaper having a bottom and plaited sides, the latter terminating in an opening, means for reenforcing said cup, said means comprising a substantially square outwardly projecting fold of the overlapping sides of said receptacle adjacent and encircling said opening, said fold including two thicknesses of said folded plaited sides on a plurality of ,thesides of said square fold, said fold contacting with the sides of said cup adjacent the-lower inner extremity of said fold. I

tral ortion thereof to project outwardly into a su stantiall square projecting flange.

6. The met 0d of forming a paper receptacle comprising folding the same to form overlapping plaited sides, folding the upper portion of said sides outwardly and downwardly and thence upwardly, compressin said folded portion toward the body of sai cup and thereafter compressin the free edge of said folded portion upwar y to form a substantially, square pro ecting flange.

Signed at New York, in the county of New York and State of New York this 20th day of March A. D. 1929.

J. LACKNER.

-5. The method of forming a paper recep- I tacle comprising folding the same to form overlapping plaited sides, folding the edge ortion of said sides downwardly and upwardly to form aflat flange, compressing the flange so formed against the body of said cup and thereafter compressing said flange lengthwise of the cup body to cause the cen- 

